Top 100 Software Testing Companies in California

PFLB specializes in performance testing services. We help companies find and resolve performance bottlenecks such as ill-performing API calls or slow database queries.

Clients choose us for their performance testing needs across various technologies, including web and mobile applications, core banking systems, SAP, IVR, and legacy software.

We provide support for JMeter and LoadRunner environments, offering a comprehensive range of solutions. Additionally, our load testing platform, PFLB, empowers companies to conduct efficient and scalable performance tests.

With over 15 years of industry experience, PFLB has established a strong reputation for delivering reliable performance testing solutions globally.

For more information, visit our website at pflb.us. We'd love to discuss how we can optimize your software's performance.

SP Marketplace is a software development company based in Penn Valley, Calif., with another office in Sacramento, Calif. Founded in 2012, SP Marketplace specializes in providing custom software development, application development, and application management services to IT companies and nonprofits.

Quality geek is a Santa Monica, California-based user experience company. The small agency was launched in 2021. Their services include ux/ui design, web development, application testing, and e-commerce development.

Prestige Development Group is an IT staff augmentation company based in Sacramento, California. The small firm was launched in 2016. Their team specializes in IT staff augmentation, custom software development, mobile app development, and blockchain.

Mindful QA is a midsize Los Angeles, California-based application testing company. They specialize in application testing and were launched in 2018.

Calibraint Technologies is a Chennai, India-based blockchain company. The midsize team focuses on blockchain, custom software development, Artificial Intelligence, application management & support, and more and was launched in 2015.

Opel Labs is an application testing company. In San Diego, California, their small team specializes in application testing, IoT development, Artificial Intelligence, and custom software development. The agency was launched in 2020.

4 Way Technologies is an application development company. They offer mobile app development and were founded in 2012. Their midsize team is in Noida, India and Fremont, California.

Worklab.io, Inc. is a software agency founded in 2011 with no more than 10 members. They offer custom software, web, and mobile app development solutions from their office in Burbank, Calif. They work with small and mid-market firms in the field of business services.

Laminar Consulting Services Inc. is an application development firm located in Foothill Ranch, Calif. Founded in 20015, they currently have about 3 employees. They offer custom software development, application testing, and enterprise app modernization services to primarily midmarket firms in financial services as well as the health care and medical industries.

Agile Soft Systems, Inc, a custom software development firm, was launched in 2012. Their midsize team is headquartered in Fremont, California. Their services include custom software development, application testing, blockchain, enterprise app modernization, and more.

WordSphere WordPress Development Agency is a software development firm established in 2007. Their small team is headquartered in San Bernardino, California. The company focuses on custom software development, IT managed services, web design, wearable app development, and more.

Thought Frameworks is an application testing company. They are in Walnut, California and Bengaluru, India and have a midsize team that provides application testing. The company was founded in 2009.

QA Genesis is an application testing company headquartered in Ellicott City, Maryland. They focus on application testing and were founded in 2014.

PCloudy is a midsize Dublin, California-based application testing company. They focus on application testing and were launched in 2015.

Application testing company Innoflexion Technologies was founded in 2016. The company offers application testing and has a midsize team.

Parasoft is a midsize application testing company. They focus on application testing and were founded in 1987. The agency is headquartered in Monrovia, California; Shanghai, China and Kraków, Poland.

Test IO is a large application testing company. They offer application testing and were founded in 2011.

In San Jose, California, Performance Lab is an application testing company. The agency specializes in application testing and is midsize.The agency was launched in 2008.

VOLANSYS Technologies is a product realization and digital transformation company based in Ahmedabad, India, and founded in 2008. Their team of more than 350 employees specializes in IoT development, cloud consulting, and mobile app development. 

Odyssey Computing, Inc. Is a web design company headquartered in San Diego, California. The small agency was founded in 1996. Their services include web design, ux/ui design, custom software development, web development, and more.

QualiLogic, LLC is a web and mobile firm based in Northridge, Calif. with more than two employees. They have offered mobile app development, e-commerce development, and SEO solutions to small businesses in the fields of arts, consumer products, and more.

Application testing company Solution Sources Programming was founded in 1990. The firm provides application testing and custom software development and has a small team.

BugRaptors is a software testing company based in Mohali, India with an office in California. Founded in 2016, the team of 31 specializes in application testing. They work primarily with small business clients in the gaming and real estate industries.

Solvd, Inc. is a global QA and software engineering company with 11+ years in business. The custom software development company has headquarters in the USA, 7 development centers in Ukraine, Poland, Georgia, Argentina, Brazil and Mexico, and a sales office in Hungary.
The growing team of 600+ professionals delivers software and testing solutions to medium and enterprise-size businesses and provides Software QA Consulting services.
320+ completed projects celebrate the results of working with clients in fitness, fintech, e-commerce, transportation, healthcare and other niches.
Solvd focuses on long-term partnerships and helps clients create market-dominant products. World-renowned names – Under Armour, NerdWallet and MyFitnessPal – top the list of the company's successful cooperation cases.
Clients trust our software development outsourcing company to reinforce their engineering teams with the best talents and innovative ideas. They turn to Solvd for Software Development services and assistance in creating and refining various software solutions that users choose out of multiple offers on the market. With professional help, they quickly grow their revenues, scale teams up, reach out to new audiences, and hit business targets.
In addition, Solvd has free test automation courses to train new skilled professionals and open up more career opportunities. 

 

Software Brush Inc is a small Laguna Beach, California-based application testing company. Their services include application testing, IT strategy consulting, custom software development, application management & support, and more.

Resolve Systems is a midsize application testing and robotics process automation company. Headquartered in Campbell, California; Irvine, California and London, United Kingdom, the company was launched in 2014. Their team focuses on application testing and robotics process automation.

ProfSquad is an application testing company. They are in Los Angeles, California and have a small team that provides application testing. The company was founded in 2019.

EInfochips - an Arrow company, an IoT development company, is headquartered in San Jose, California and Ahmedabad, India. The large team offers IoT development, cloud consulting & SI, Artificial Intelligence, cybersecurity, and more. The company was founded in 1994.

With offices in San Francisco and development centers across Latin America and the U.S., BairesDev provides end-to-end delivery for its clients. Founded in 2009, their team of over 3,000 seasoned engineers provides web and software development services in addition to managed IT support, staff augmentation, and application testing.